Olkiluoto 3 EPR - new milestones achieved

Olkiluoto 3 EPR project has achieved two major milestones: start of Nuclear Circuit Cleaning and completion of Full Scope Simulator testing.

The Nuclear Circuit Cleaning (NCC) comprises flushing all the plant auxiliary pipes toward the primary circuit and the reactor vessel with demineralized water. This will ensure the cleanliness of the reactor primary circuit as well as all the main connected auxiliary systems. This is one of the prerequisites for another project milestone: the start of the Cold Functional Tests planned for early summer 2017.

Along with the NCC start, the testing of Full Scope Simulator – the in-situ replica of the plant Main Control Room – has been completed. The next step is to start the simulator training of TVO’s plant operators.

“These milestones are important steps towards completion of the plant. The OL3 EPR project has all of the prerequisites necessary to proceed as planned”, explains Jouni Silvennoinen, Senior Vice President responsible for the OL3 EPR Project at TVO.

“These key milestones have been reached thanks to the commitment of our team to complete the project at the satisfaction of our customer.These further steps enable us to secure our future operational milestones”, says Jean-Pierre Mouroux, OL3 EPR Project Director, for the Consortium AREVA-Siemens.

In parallel, finalization of the main electromechanical installations and plant finishing works are underway.